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    <title>topic ClassCastException when casting process variables in Alfresco Archive</title>
    <link>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16747#M7472</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Hey guys,&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;I'm getting ClassCastExceptions when trying to cast process variables into my own variables:&lt;/SPAN&gt;&lt;BR /&gt;&lt;PRE class="language-none line-numbers"&gt;&lt;CODE&gt;&lt;BR /&gt;…&lt;BR /&gt;public class PersistBookingDelegate implements JavaDelegate {&lt;BR /&gt;&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;private BookingDAOLocal bookingDAOLocal;&lt;BR /&gt;&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;@Override&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;public void execute(DelegateExecution e) throws Exception {&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;try {&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;InitialContext ctx = new InitialContext();&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;bookingDAOLocal = (BookingDAOLocal) ctx.lookup("Advertising_v1.0/BookingDAO/local");&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;} catch (NamingException ex) {&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;ex.printStackTrace();&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;}&lt;BR /&gt;&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;BookingDTO b = (BookingDTO) e.getVariable("bookingDTO");&lt;BR /&gt;&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;EBooking booking = bookingDAOLocal.makePersistent(BookingHelper.mapDTOToEntity(b));&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;}&lt;BR /&gt;}&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN class="line-numbers-rows"&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/CODE&gt;&lt;/PRE&gt;&lt;BR /&gt;&lt;PRE class="language-none line-numbers"&gt;&lt;CODE&gt;&lt;BR /&gt;10:03:18,246 ERROR [STDERR] java.lang.ClassCastException: de.advertising.backend.dto.BookingDTO cannot be cast to de.advertising.backend.dto.BookingDTO&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at de.advertising.backend.delegates.PersistBookingDelegate.execute(PersistBookingDelegate.java:42)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.ClassDelegate.execute(ClassDelegate.java:96)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.ExecutionImpl.performOperation(ExecutionImpl.java:521)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.ExecutionImpl.take(ExecutionImpl.java:387)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:86)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:47)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.AbstractBpmnActivity.leave(AbstractBpmnActivity.java:44)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.UserTaskActivity.signal(UserTaskActivity.java:62)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.ExecutionImpl.signal(ExecutionImpl.java:371)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.task.TaskEntity.complete(TaskEntity.java:172)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:52)&lt;BR /&gt;10:03:18,246 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:27)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:22)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:37)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.TaskServiceImpl.complete(TaskServiceImpl.java:100)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at de.advertising.frontend.windows.CheckBookingWindow$1.buttonClick(CheckBookingWindow.java:59)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at java.lang.reflect.Method.invoke(Method.java:597)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:487)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1154)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.ui.Button.fireClick(Button.java:371)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.ui.Button.changeVariables(Button.java:193)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1094)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:590)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:266)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:476)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)&lt;BR /&gt;10:03:18,247 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)&lt;BR /&gt;10:03:18,248 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at java.lang.Thread.run(Thread.java:662)&lt;BR /&gt;10:03:18,251 ERROR [STDERR] com.vaadin.event.ListenerMethod$MethodException&lt;BR /&gt;Cause: java.lang.ClassCastException: de.advertising.backend.dto.BookingDTO cannot be cast to de.advertising.backend.dto.BookingDTO&lt;BR /&gt;10:03:18,251 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:507)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1154)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.ui.Button.fireClick(Button.java:371)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.ui.Button.changeVariables(Button.java:193)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1094)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:590)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:266)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:476)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)&lt;BR /&gt;10:03:18,252 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at java.lang.Thread.run(Thread.java:662)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] Caused by: java.lang.ClassCastException: de.advertising.backend.dto.BookingDTO cannot be cast to de.advertising.backend.dto.BookingDTO&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at de.advertising.backend.delegates.PersistBookingDelegate.execute(PersistBookingDelegate.java:42)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.ClassDelegate.execute(ClassDelegate.java:96)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.ExecutionImpl.performOperation(ExecutionImpl.java:521)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.ExecutionImpl.take(ExecutionImpl.java:387)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:86)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:47)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.AbstractBpmnActivity.leave(AbstractBpmnActivity.java:44)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.bpmn.UserTaskActivity.signal(UserTaskActivity.java:62)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.pvm.runtime.ExecutionImpl.signal(ExecutionImpl.java:371)&lt;BR /&gt;10:03:18,253 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.task.TaskEntity.complete(TaskEntity.java:172)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:52)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:27)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:22)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:37)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at org.activiti.engine.impl.TaskServiceImpl.complete(TaskServiceImpl.java:100)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at de.advertising.frontend.windows.CheckBookingWindow$1.buttonClick(CheckBookingWindow.java:59)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at java.lang.reflect.Method.invoke(Method.java:597)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:487)&lt;BR /&gt;10:03:18,254 ERROR [STDERR] &amp;nbsp;&amp;nbsp;&amp;nbsp;… 29 more&lt;BR /&gt;&lt;SPAN class="line-numbers-rows"&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/CODE&gt;&lt;/PRE&gt;&lt;BR /&gt;&lt;SPAN&gt;The BookingDTO is in the same jar together with all Delegates, located next to the activiti-engine.jar. The engine is located in my server/default/lib folder (JBoss 5).&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Any ideas?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Cheers,&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Marc&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 22 Dec 2010 09:11:45 GMT</pubDate>
    <dc:creator>mskaesz</dc:creator>
    <dc:date>2010-12-22T09:11:45Z</dc:date>
    <item>
      <title>ClassCastException when casting process variables</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16747#M7472</link>
      <description>Hey guys,I'm getting ClassCastExceptions when trying to cast process variables into my own variables:…public class PersistBookingDelegate implements JavaDelegate {&amp;nbsp;&amp;nbsp;&amp;nbsp;private BookingDAOLocal bookingDAOLocal;&amp;nbsp;&amp;nbsp;&amp;nbsp;@Override&amp;nbsp;&amp;nbsp;&amp;nbsp;public void execute(DelegateExecution e) throws Exception {&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;try {&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;</description>
      <pubDate>Wed, 22 Dec 2010 09:11:45 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16747#M7472</guid>
      <dc:creator>mskaesz</dc:creator>
      <dc:date>2010-12-22T09:11:45Z</dc:date>
    </item>
    <item>
      <title>Re: ClassCastException when casting process variables</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16748#M7473</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Strange,&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Looks like the BookingDTO class used for casting loaded by a different classloader than the one the variable was deserialized with. Have you tried to deploy the engine and your delegates in the WEB-INF/lib of your webapp?&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 23 Dec 2010 06:56:41 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16748#M7473</guid>
      <dc:creator>frederikherema1</dc:creator>
      <dc:date>2010-12-23T06:56:41Z</dc:date>
    </item>
    <item>
      <title>Re: ClassCastException when casting process variables</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16749#M7474</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;You were right. It was a classloader issue. Deploying the engine in the /lib folder solved the problem. Thanks a lot!&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 29 Dec 2010 09:06:43 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16749#M7474</guid>
      <dc:creator>mskaesz</dc:creator>
      <dc:date>2010-12-29T09:06:43Z</dc:date>
    </item>
    <item>
      <title>Re: ClassCastException when casting process variables</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16750#M7475</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;No problem, glad to be of service &lt;img id="smileywink" class="emoticon emoticon-smileywink" src="https://connect.hyland.com/i/smilies/16x16_smiley-wink.png" alt="Smiley Wink" title="Smiley Wink" /&gt;&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 29 Dec 2010 09:27:18 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/classcastexception-when-casting-process-variables/m-p/16750#M7475</guid>
      <dc:creator>frederikherema1</dc:creator>
      <dc:date>2010-12-29T09:27:18Z</dc:date>
    </item>
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